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Finding the Fourth Proportional to 27,035.20, 40,552.80 and 13,211.20

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Solution

The fourth proportional to 27,035.20, 40,552.80 and 13,211.20 is: 19,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,035.20 : 40,552.80 = 13,211.20 : x
  2. Step 2: Convert to fraction form
    27,035.20/40,552.80 = 13,211.20/x
  3. Step 3: Cross multiply
    27,035.20x = 40,552.80 × 13,211.20
  4. Step 4: Simplify right side
    27,035.20x = 535,751,151.36
  5. Step 5: Solve for x
    x = 535,751,151.36/27,035.20
  6. Step 6: Final answer
    x = 19,816.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.